package com.zz.parkingsystem.service;

import java.util.Date;

/**
 * @Auther: BAISIHANG
 * @Date: 2022/9/5 - 09 - 05 - 19:25
 * @Description: com.zz.parkingsystem.service
 * @version: 1.0
 */
public interface RefundService {
    //所有退款的数量
    int  getselRefundSum();
    //总退款金额
    double getselMoneySum();
    //所有退款的数量根据时间查
    int  getSumNumberBytime(Date ref_time);
    //按照每天日期显示每日退款金额
    double getSumMoneyBytime(Date ref_time);
}
